(-5,5) because domain is side ways on the point and range is straight up
Answer:
Step-by-step explanation:
Let c be cost of each call and t represent cost of each text message.
We have been given that last week Ricki made 4 call and sent 20 text messages which cost him $4.
Cost of 4 calls would be .
Cost of 20 text messages would be
Total cost id $4.00.
We can represent this information in an equation as:
We are also told that this week he made 10 calls and sent 5 text messages which cost him $5.50.
Cost of 10 calls would be .
Cost of 5 text messages would be
Total cost id $5.50.
We can represent this information in an equation as:
Therefore, our required system would be:
Problem 1 Answer: x = 2/3y+8
Show Work:
Step 1: Add 2y to both sides.
3x−2y+2y=24+2y
3x=2y+24
Step 2: Divide both sides by 3.
3x/3 = 2y+24/3
x = 2/3y+8
Problem 2 Answer: x=−2y+48
Show Work:
Add -2y to both sides.
x+2y+−2y=48+−2y
x=−2y+48
Answer:
Step-by-step explanation:
Putting x = 1
=>
Given that f(1) = 1
=>
=> -------------------(1)
Now,
Putting x = 2
=>
Given that f(2) = 5
=>
=>
=> ----------------(2)
Subtracting (2) from (1)
For b , Put a = 9 in equation (1)